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The infiltration of web apps and mobile apps is a major concern. Testing is a key focus for many companies. It touches almost every aspect of our day-to-day lives. App and Web Testing are important parts of the overall development process. This involves finding and fixing bugs, including issues with navigation, signup forms, payment processing, and more. This ensures that users have a seamless experience on all devices.

A thorough testing process can lead to a variation in the results when it is done on different devices. It is even more important to test on mobile devices because of the many devices with different operating systems, browsers, and hardware configurations.

This helps identify bugs and weaknesses in the app and benchmark its performance. This mobile testing exercise is designed to ensure that the app is ready for market and meets customer expectations.

It’s time to look at the different methods and mediums for executing mobile testing.

Emulators

Emulators can be described as software that mimics the hardware and software of a device.

Pros:

Most emulators are open-source and can be used for free

Testing web apps with Eases

They make binary translation for the machine easier

Cons:

They are likely to use a lot more computing power.

Not all apps are supported by emulators

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Simulators

These simulators are designed for specific operating systems. Simulators are designed for Apple’s OS platforms. iOS, macOS, etc.

Pros:

It’s easier to take pictures of problems

Simulators are, like emulators and other open-source software.

Cons:

This limits the machines that can be used to test mobile apps.

It does not allow testing functionalities like battery usage, motion sensors, or cellular interrupts.

Real devices

This testing requires the use of real mobile handsets to test an application. Real devices-based testing requires the use of multiple sizes and models of devices that are compatible with the app.

Pros:

This testing requires a variety of devices to ensure greater functionality in mobile apps.

One can perform rigorous performance testing with real devices.

Cons:

Real device testing is often more complex because the company must test each relevant mobile device.

This type of testing can be very expensive.

Let’s now compare simulator-based, emulator-, and real devices.

Performance

Speed

Cost

This sums up the main differences between real and virtual device-based testing. Each of these forms of testing has its unique pros and cons. It can be difficult to choose between these forms of testing. However, a careful analysis of your project’s requirements and what mobile testing offers can help you make an informed choice. You can also find a trusted mobile tester to assist you in your testing.

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Alpha Testing Vs Beta Testing: Which Is Right For You?

Difference between Alpha Testing and Beta Testing

Web development, programming languages, Software testing & others

Alpha Testing

It is a type of testing which is performed before the release of the product to identify all the possible bugs. It is done to simulate real users by using techniques like white box testing and black-box testing technique. It is done in a lab environment, and internal employees are the testers. The aim is to hold out the tasks that a typical user may perform.

It is done in two phases:

In-house developers do the first phase; they either use hardware-assisted debuggers or debugger software.

The second phase is performed by QA (quality assurance) team.

It is named alpha only because this kind of testing is done at the early stage, i.e. near the end of the software development. It is conducted before beta testing.

Beta Testing

It is a type of external User Acceptance Testing as it is performed by real users of the product in a real environment. It is done to take feedback on the standard of the software/product. A limited number of end-users test the product as it gets released to a restricted number of end-users only. It reduces the risks of product failure as customer validation provides assures the hyperbolic quality of the product.

Head To Head Comparison Between Alpha Testing and Beta Testing (Infographics)

Below is the top 12 difference between Alpha Testing vs Beta Testing.

Key differences between Alpha Testing and Beta Testing

let’s understand the key differences between alpha testing vs beta testing:

Alpha testing is done by the testers who reside as an internal employee in the organization, while the end-users perform beta testing.

Alpha testing is done in a lab environment as it is performed mainly by the developers, while beta testing is done in a real-time environment as real-time users perform it.

Both of them ensure a good quality product, but alpha testing does not test the in-depth security and reliability of the product, while beta testing tests the robustness, reliability, and security of the product.

Alpha testing uses both white box and black box testing techniques, while beta testing uses only black-box testing techniques.

Bugs/Issues which are identified in alpha testing can be fixed and implemented easily as it is done near the end of the development, while feedback that you get in beta testing is implemented in the future release of the environment.

Alpha testing ensures that you are sending a quality product for beta testing, while beta testing ensures that the product is ready for the end-users.

Alpha testing vs Beta Testing Comparison table

Below is the topmost comparison between Alpha Testing vs Beta Testing:

S. No. ALPHA TESTING BETA TESTING

1 Performed by the internal employees of the organization. Performed by the end-users or clients who aren’t the employees of the organization.

2 Performed within the organization or at the developer’s site. Performed at the client’s location or with the end-users.

3 Involves both white box and black box testing techniques. Involves only the Black box testing technique.

4 Do not test the in-depth security and reliability of the product. Tests robustness, security, and reliability of the product.

5 Done to identify all the possible bugs. Done for quality testing.

6 Requires a lab environment. It requires a real-time environment as it is done by the real-time users.

7 It takes more time as the execution cycle of the product is expected to belong. It takes lesser time as the execution cycle is of few weeks only.

8 Developers can address critical issues immediately. Feedback or issues are collected from the end-users.

9 Have mainly technical issues or some issues with the working of the product. User’s feedback also involves things like the addition of the new feature.

10 It can be incorporated/ implemented easily as it is done before the near end of the development. Will be incorporated/ implemented in the future release of the product.

11 Performed to ensure the quality before the beta testing phase. Performed to ensure that the product is ready for the end-user.

12 Finding testers is not a challenge as in-house employees are the testers. Finding the right users for testing and maintaining their participation could be a challenge.

Advantages Advantages of Alpha testing

It helps to detect designing and functionality errors at an early stage.

It gives you a better view of the quality and reliability of the product at an early stage.

Advantages of Beta testing

It reduces the risk of product failure.

It improves the quality of the product through customer validation.

It increases the satisfaction of customers.

It helps you to get involved with real-time users.

Conclusion

In the Software world, no matter how much hard work you do, how many tests you perform, how good you make the interface or how many bugs you fix, your product is useless if your client and your end-users do not like it. Beta testing helps you to take feedback from your end and real-time users. It helps you to ensure that you are providing a quality product.

On the other hand, Alpha testing helps you simulate a real-time user environment before you send the software for Beta Testing; it helps to fix possible bugs so that you can send an eligible product for beta testing.

Alpha testing and Beta testing are inseparable from each other, and they play a major role in your testing lifecycle. So, you can’t imagine a product release without them.

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Power Bi Vs Tableau Vs Qlik

Difference Between Power BI vs Tableau vs Qlik

Power Bi is a Business Intelligence tool we can upload data and publish data throughout our companies. Business Intelligence response to any query and improves decision making. Adding power to the business for good visualization of data. Another feature of Power BI Is Quick Insights in which we can search a dataset for interesting patterns and provides a list of charts for a better understanding of data. It uses artificial intelligence and data mining to analyze the data. Qlik is also a Business Intelligence and data visualization tool.

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It is an end – to end ETL solution yielding good customer service. With qlik, we can create a flexible end-user interface, make good presentations based on the data, creates dynamic graphical charts and tables, perform statistical analysis, builds own expert systems. Qlik can be used with the virtual database. It is a window-based tool that requires the following components: Qlik Server, Qlik Publisher.

Features of Power BI

Rich Graphical visualizations from complex BI data.

Ad-hoc Reporting

Good Navigation Pane

Includes a dataset with customizable dashboards.

Features of Qlik

With the use of a hybrid approach, the user can associate data stored within big sources are stored within the Qlik view in-memory dataset.

With the help of direct discovery, they allow users to perform Business discovery and visual analysis.

Mobile-ready, Roles, and Permissions

Interact with dynamic apps, Dashboards.

Features of Tableau

They have a good drag and drop.

For data sharing, they use Tableau Public.

They implement interactive data visualizations on the web.

Their performance is strong and reliable and operates on huge data.

They are mobile-friendly and supports full online versions.

Head To Head Comparison Between Power BI and Tableau and Qlik(Infographics)

Below is the top 9 difference between Power BI vs Tableau vs Qlik

Key Differences Between Power BI and Tableau and Qlik

These are popular choices in the market; let us discuss some of the major difference:

Qlik can be immediately accessed by multiple users. Qlik is faster than Tableau. Power bI connect to any data source they do not require ETL.

The documents are stored in. the qvw format we can access these documents via Qlik Views proprietary communication protocol and stored in Windows OS, and all the events are taken in Qlik Server, they are responsible for Client-Server Power BI has three types of files excel(.xls), power BI desktop(.pbix), (.csv). Tableau extract files can have (.tde) file extensions.

Qlik structure is not well managed whereas Tableau structure is managed by well user guide.

Qlik works as a standalone technique. Publishing the data to the outside world are managed by QlikView Publisher. Power BI is available only on the SAAS model whereas Tableau has cloud and on-premises option. Power BI desktop version is free.

Data modeling facilities are increased using POwerBI. In Qlik Data insights are generated rapidly.

Tableau and Power BI is user-friendly. Qlik has high customizable patterns.

Qlik and tableau work for statistical analysis. Power BI does not have this capability.

Power BI vs Tableau vs Qlik Comparison Table

Below is the 9 topmost comparison

The basis of comparison  Power BI Tableau Qlik

Performance  It Lacks behind on data visualizations. They are more User-friendly because Non- technical users can work with this tool. They use cubic Technique Qlik needs a developer to work with reports and dashboards. They take all types of datasets.

They have good visualizations.

User Interface

Dashboards are the key feature of PowerBI when has a good User interface to publish the report.

User Interface is better

User Interface is quite down when compared with Tableau.

Ease of learning

User-friendly- Knowledge of Excel is enough

They do not require any technical or programming skills to work with.

Easy to learn with Data science background.

Supportive requirements

Power BI has Power BI desktop, Gateway

They work with front-end tool such as R.

Qlik consists of both front-end (Qlik Developer) and back-end (Qlik Publisher)

Version

The desktop version is free, Power BI Pro is pay per month. Tableau Reader is a free version. Tableau Server is a licensed one. Qlik Personal Edition is a free version of Qlik and runs without a license Key.

Cost- Effectiveness Less expensive. Qlik website has two editions. Personal version is free, Enterprise version can be used contact with the team.

Online Analytical Programming They connect to OLAP cubes via SQL servers for multidimensional analysis. Tableau can connect to OLAP taking out the cube measures at the deepest level. Access to OLAP provides encapsulated data views.

Speed They have smart recovery Speed depends on RAM and data sets. They have better Speed since they store the data in the server RAM (In-Memory Storage)

Advantage Power BI are inexpensive and have scalability for larger projects. They are top ranked in intelligence visualizations. They provide wide range deep analytics and they have good customer satisfaction

ratings.

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Why Construction Companies Need Intrinsically Safe Mobile Devices

The construction industry is no stranger to occupational hazards, and employee safety is the top priority. When it comes to portable and handheld devices, many construction companies have bypassed modern handheld devices in many work areas to manage employee risk. While protected from electrocution, fire and explosion, however, employees and managers have been forced to live without the business benefits of connectivity.

Help is here in the form of intrinsically safe devices that meet Occupational Health and Safety Administration (OSHA) standards and can deliver a multitude of process improvements, making them reliable and beneficial assets in construction risk management.

The Need for Intrinsically Safe Devices

Risk looms large in construction. In 2023, slightly more than 20 percent of the 4,674 worker fatalities in the U.S. private industry were in the construction sector, according to OSHA.

OSHA also reports that effective control of hazardous electrical energy is one of the 10 most frequently violated standards in the industry. Electrocutions count as one of the “Fatal Four” factors for worker fatalities and is an important concern in construction risk management.

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Given the high prevalence of unsafe and unpredictable electrical energy fields and conditions that might create danger, industry workers have traditionally worked with materials that are safe and won’t combust in such environments. These include paper blueprints and traditionally ruggedized, clunky computers. Most other equipment in construction falls under the Class I Div 2 category of products that meet OSHA specifications for construction risk management.

Compromised Productivity

Reliance on paper while on site constricts workers’ productivity in a variety of ways.

Static information: Blueprints are not updated every day and definitely not in real time. This means workers might not have access to the latest updates to design plans. They have to rely on other employees remembering to record changes accurately and implement them throughout the workflow. Information on paper is also prone to manual error when transcribed and saved over time, as well as to environmental hazards.

Paper trail: Construction supervisors and workers have a long list of tasks to attend to daily. Traditionally, they might be outlined on paper in duplicate copies — one for the road, and one for the corporate office. Repeatedly having to refer to a piece of paper while on site can get cumbersome quickly. What’s more, paper can get damaged under everyday environmental conditions, including rain and wind. Relying on paper checklists means a greater probability of workers forgetting to check things off, which can get especially complicated when two or more workers share the same lists. Under intense field conditions, it might not always be easy to keep track of who is doing which task on a paper list. Using paper for the approval process also makes supervisor and other stakeholder signatures more difficult to procure and track.

Ineffective communication: Traditional technologies on site do not smoothly facilitate communication among field personnel, managers and the corporate office — which can slow productivity or even bring it to a screeching halt. If a worker encounters a maintenance issue they need assistance with, they can use a Class I Div 2 intrinsically safe smartwatch to quickly reach a manager, who can then troubleshoot with an off-site expert using the watch’s voice capabilities. If a video link is needed, the field worker can utilize AR/smart assist technology via an intrinsically safe tablet (Div 1 or Div 2) to reach an offsite expert. Similarly, if a worker comes across a different machine on the field than what they were trained on, they can access corresponding tutorials or information instantly on the tablet.

Intrinsically Safe Devices Keep Workers Connected

Mobile tablets also allow augmented reality layered solutions, which means smart assistance for tricky onsite problems is never more than a video call away. Through the tablet’s camera, remote experts can guide the construction worker through complicated procedures so operations are always done right, safely and on time.

Hazardous working conditions in the construction industry have had workers relying on safe but outdated tools of the trade. Intrinsically safe devices are the prescription that can deliver both process efficiencies and approved functionality in high-risk environments.

Read our in-depth white paper to learn how mobile technology is modernizing the industry, and learn about how a rugged tablet can help you solve your toughest business challenges

Is Installing Antivirus Software On Mobile Devices Necessary?

IT managers often wonder whether they should be installing antivirus software on enterprise smartphones. Like most security questions, the answer is a clear-cut “it depends.”

First and foremost, it’s important to define the scope of protection. Antivirus is a misnomer; antimalware is more accurate. But the best way to think of these tools is as endpoint security suites, very similar to the endpoint security installed on corporate laptop and desktop systems. Leading products don’t just protect against viruses, they’re full mobile device security suites. If you find a tool that’s nothing but antivirus protection, you’ll know it isn’t state-of-the-art and won’t be very useful to you. In today’s security landscape, organizations need to outfit their hardware with software that does more.

Enterprise-class antimalware tools have another characteristic: centralized management consoles. This creates some overlap with common mobile device management (MDM) and enterprise mobility management (EMM) solutions, but each software system still has its differences.

Addressing endpoint security

So what’s in these endpoint security tools? Well, the vendors are still trying to figure out the best features, so their tools often provide a little bit of everything. The common denominator is basic antivirus and antimalware protection.

But on a well-managed Android smartphone, basic antimalware protections aren’t going to come into play very often. Although malware can infect smartphones through web browsing, the most dangerous types of malware are linked to infected applications.

IT managers who block nonapproved stores and use application whitelisting are unlikely to run into malware riding on top of normal applications. Many IT managers who have activated these operating system protections are wondering if they really need an endpoint security suite. And that’s what brings administrators to the answer of “it depends.”

Endpoint security in mobile environments

Android endpoint security suites usually include a number of other features, which can help IT admins determine if additional software is needed. These features can be divided into ones that look familiar to desktop managers and ones that are unique to the mobile environment.

A very common feature in endpoint security suites, for both desktop and mobile, is web filtering. This blocks or alerts users who are trying to browse webpages that have web-based malware or phishing or are out-of-policy for the enterprise. IT managers who think they’re particularly susceptible to credential theft attacks might find web filtering a compelling reason to install antivirus so they can improve mobile device security.

Because mobile endpoint security suites are integrated with enterprise consoles, IT managers can also use them as “MDM lite” tools with a restricted set of features. Many mobile device security products have the ability to control certain security policy features through their enterprise consoles. Features such as device unlock configuration, network access policies for unsecured Wi-Fi and remote wipe have all made their way into mobile endpoint security suites.

IT managers who haven’t chosen to implement a full-fledged MDM or EMM product may be able to get additional security by installing mobile antivirus. Enhanced device monitoring provided by the enterprise console is another reason to consider an antivirus suite. Unfortunately, the reverse isn’t true: Just because you have a full MDM or EMM installed doesn’t mean antimalware is superfluous.

Evaluating mobile-specific features

Some endpoint security products also have mobile-specific features that allow for a unified set of features across different smartphone platforms. For example, endpoint security products can audit and control smartphone features such as location tracking, cameras and microphones by using the host operating system capabilities — a difficult task when it comes to laptops.

Containerization is another a mobile-specific feature with significant endpoint security benefits. The endpoint security suites that have containerization provide a more homogeneous experience across the end-user community when heterogeneous devices are in use. Containerization provides IT professional an extra layer of data protection and provides employees a secure environment where they can access sensitive information.

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In other cases, endpoint security solutions add clever features that make sense only in a mobile environment. “Find my phone” and remote wipe are well-understood mobile security features, but they’re just a start. Several products watch the smartphone SIM and can send an alert when the SIM is changed or the phone is jailbroken, which can indicate the phone has been stolen or tampered with.

Another application is anti-spam protections. An enterprise’s email service usually monitors email spam and phishing, but what about SMS spam or unwanted voice calls? Several mobile endpoint security solutions can help with that. Both of these areas are examples of where IT managers looking for specific added security — beyond basic antimalware protections — may want to turn to endpoint security suites.

The different features, risks and mitigations make it clear that there’s no clear answer. Installing antivirus software will depend on your organizational needs. IT managers with a very low-risk profile may find that antimalware tools increase cost and complexity. Organizations that decide they need additional protections or specialized features will want to use an endpoint security suite.

Endpoint security suite vendors are working hard to earn their keep, and their products bring much more than basic protection against viruses. These products should be explicitly evaluated by every IT manager.

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Power Supply Ratings Explained: 80 Plus Platinum Vs. Gold Vs. Bronze Vs. White

Efficiency ratings explained

A power supply’s efficiency rating tells you how much energy makes the conversion from AC power (what it draws from the wall) to DC power (what your PC’s components run off of). The rest is lost as heat. Power supplies rated as 80 Plus will have a 80-percent power to 20-percent heat ratio at 20-percent, 50-percent, and 100-percent load. As you get into the precious metal designations, the efficiency rises, capping out at 94-percent under 50-percent load for a Titanium-rated model. The efficiencies for power supplies rated at 80 Plus Bronze and above vary based on the amount of load.

The more efficient a power supply is, the less power it uses and the less heat it generates—which means a lower electricity bill and a quieter PSU. The components tend to be better too, which means you should be able to use it for longer. Manufacturer warranties usually reflect this: A Bronze-rated power supply might get a 3- to 5-year warranty, while a Platinum-rated model will be backed for 10 years.

These days, the most power supplies from well-known, reliable manufacturers have an 80 Plus or above certification, but it is possible to find other PSUs that fall below that. Those cheap power supplies that get included as part of a bundle with ultra-cheap cases? Not 80 Plus-rated.

The actual percentage of efficiency for the U.S. and other countries with electrical grids that run on similar voltage. (You can see the full chart on CLEAResult’s site.) The minimum efficiency to meet ATX specifications is 60-percent at 50-percent load—much lower than where the 80 Plus standard begins.

How to choose an efficiency rating for a power supply

Three main considerations help determine what efficiency rating will work best for your PC build:

Local electricity rates

Ambient temperatures

Budget

Most average PC users who live in a temperate climate with low pricing for electricity will do fine with a standard 80 Plus or 80 Plus Bronze power supply. As you can see in the table above, the efficiencies don’t dramatically jump as you move to a higher rating.

EVGA

Typically as you go up in wattage, power supply efficiency ratings rise as well. But efficiency ratings don’t always tell the whole story about a specific model’s performance, so be sure to read reviews to get the full picture.

If you live someplace where electricity is more expensive, then the cost savings of a more efficient power supply can be worth the higher initial price. A higher-rated PSU can also make sense if you live somewhere that gets very hot for long periods, as ultra-warm ambient temperatures can reduce a power supply’s efficiency. Less heat from your power supply means less noise from its fan and less work on your part to keep your PC cool overall, too.

In general, the higher you climb in wattage, so too does the efficiency rating. Your decisions will typically fall between just two to three options, which will make the selection process easier. Don’t feel obligated to spend more than you need—budget still matters. Buy a power supply with an efficiency that fits your situation, not the demands of other people who believe you must always maximize on specs.

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